Pet bed



FIG. 1 is a perspective view of a pet bed showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is atop view thereof

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view of an alternative embodiment of the pet bed.

The broken lines shown in the drawings depict portions of the pet bed that form no part of the claimed design. 

CLAIM The ornamental design for a pet bed and step system, as shown and described. 